End-thrust ball bearing



J. J. MCQUAID ET AL END THRUST BALL BEARING Filed Jan. 18. 1922 WE l T 0 all whom it may concern Patented on. a fleas.

JOHN J. MCQUAITD, or B'n-ooKnYlmeNp nrcnonas w. seizinnns, on NEW YORK, any.

* nun-runner BALL BEARING.

- Application filed January 18, 1922'.

Be it known that we, JOHN J. MoQ nAID ZLDClNICHOLAS .VV. SAMUELS, residents of- Brooklyn, Kings County, State of New York, and New York cit county and State of New York, respectively, and citi- Zens of the United States of America, have invented certain new and useful Improvements in- End-Thrust Ball Bearings of which the following is a specification.

This invention relates to improvements in" thrust bearings, one of the objects being to provide a ball thrust bearing, for the shaft of devices such as fishing reels, phonograph motors, sewing machines, etc. further object of our invention is to provide an inexpensive etiicient adjustable thrust'bearing, or one arranged to take up slack or wear.

We will now proceed to describe our in-' vention in detail, the: novel features of which we will point outin the-appended claims, reference being had to the accom ing spring 16 under increased tension. Thespring 16 will act as a-Ilock to prevent cage 7 from becomingloosened, and workofi-by vibration as it will force the threads of the tion, illustrating the ball cage when not inuse; and

Fig. 6 is a similar view of a modified form of our invention.

Our invention comprises .a cagev 7 to contain an antifriction ball 8 arranged to bear against the end of a shaft 9, the cage? being designed to engage a lug 10 on the support 11. said lug being threaded at 12 to engage similar threads in the opening 13 in the one end of the cage 7. As can be seen, shaft '9 passes through lug 10' centrallv thereof; hence, the axes of the shaft and cage will aline. Cage. 7 is provided with a bore 14 somewhat larger in diameter than opening 13 to contain a thrust-plate 15, spring 16 and retainer 17 for ball 8, said retainer bearing against cover plate 19 in the adiacent'end of cage 7. In this instance, plate 19 has a threaded engagement with said cage. acounterbore 20 being provided to receive said plate, the wall of the counterbore' being threaded'to engage the threads'on plate 19.

The ball r iner 17 carries a s re etmw illustrates our improved device'in" Serial no. 530,090.

ber 21 to carry ball 8, the ball extending partly through the end of the socket in order that it will bear against the shaft. The ball retainer 1'? will be pressed againstlplate 19- by the spring. 16. Plate 19 is providedwitha recess or seat22 for the ball 8, the end of shaft 9 being'also provided with a seator r'e cess 23 toreceive'the ball. Thethrust plate 15 is forced either against'the-endpf lug 10 or end wall ofbore 14 by thespringzl6 {dependent upon whether the cage .is in use or not (see Figs. 1 and 5). The'spring 16 will have'suliicient tension tomaintain ball retainer against plate 19 even though. the cage is not in use for this reason the ball will always remain in position even though the I vberemoved frornthe lug or projection 10. When the cage isapplied to lug lO'and screwedupthe end of lug/1O will contact with thrust plate'15, andas the cage is stillfurther screwed up, plate 15 will-be forced away fromithe end oflug 10, thereby; placlug andithreads-in theopening '13 of the cagefirrnly together and'at the same time 7 hold theball retainer 17 in position. Should wearresult froinconstant use, the cagecan be screwed up further to take up the fwearz. l

T The cover plate 19' is preferably removable in order to'renew parts, it necessary, the

plate being held in position by a set-screw 2 1. in this instance. The thrust plate 15 is slidahlyengaged by shaft 9; in other words, the shaft will pass freelv through said plate.

Boththe plate 15 and retainer 17 will slid ably fit the bore 14L of the cage 7; hence, ball 8 as well as opening 25 in plate 15 will be coincident with the axis of shaft 9.

Instead of using a ball retainer, such-as 17, we may employ a rotatable plate. 26

having a seat 27 to receive theballe said plate icing interposed between ball- 8 and spring 16. In this latter instance, the end of shaft 9. will engage 'plate 26 instead ofv bearing against ball 8, as in the form illustrated in Fig. 1. Thecage 7, when applied,

will be screwed up until the proper contact] is made between ball 8 and seat 23in the end of shaft 9, or until. plate 26 engages thrust bearing gtor machinery particularly. It will, of course, be understood that We employ a suitable lubricant.

' lhatwe desire to secure by Letters Patentis: V

1. In a'thrust bearing structure, a sup port, a projection carried thereby, arranged for the passage thereth-roughof a shaft, a cage, said cage at one end engaging said pro-jectron,

lug, an; anti-frictional inernber located at the opposite end of thecage, a retainer for the anti-frictional device, a thrust Lpla'te bearing against the projection on the sup-- portfand 'a spring, bearing, atone end,

against the thrust plate and at the other end'againsit said retainer. I r

.3 A cage arranged for attachment to a support for a shaft, an anti-friction hall at one end of the cage, a thrust collar at the other end of the cagearrangedfm the pas-' sage of 'a 'shaft therethrough, and a spring 7 between-the ball retainer and thrust collar tending to force, san'ie against their respective ends of'the cage.

an opening for ashaft, 'a cage adjustable longitudinally of the support and in par allelism with the axis of the openlng tor a shaft, an anti-friction device carried by and adjustable longitudinally thereof, an anti-frlctional member Withinthe cage to engage the end of a shathand a spring carried the 'cageto lock the' cage in position on said support.

5. In combination vwith a support having an opening for a shaft, a cage ad ustable longitudinally of the support andin parallelism with the axis of the opening for the shaft sa d support forming a. closure for one end of the cage, a retainer at one end of the cage but unattached thereto, an'anth.

frictionball held by the retainena thrustspring acting, to force the thrust plate against'its end of the cage, and said hall retainer against the other end of the cage to hold the anti-friction ball in position.

6. In combinationivith a support having cage forming. a

vhousing fora portion of said support, an

anti-friction ball at one end of the cage, a

rotatable plate bearing againstthefball which in turn-engages the end ota shaft, a spring bearing at one end against the plate and at the other end against a pro- A; IIlOOIIIblIIil-UOII With a support having.

jected'portion of said housing, and means whereby saidcage may be adjusted relatively to saidsupporting portion.

' JOHN J. MCQUAID. NICHOLAS TV. SAMUELS cage. to engage said spring on for attachment :to a

plate at the other end of the cage, and a 7 

